Seasonal
When to Take Down Hummingbird Feeders
The fear that a full feeder will strand a hummingbird into winter is the most durable myth in bird feeding. Day length drives migration, not sugar water.
The short answer
- Leaving a feeder up does not stop a hummingbird migrating. Departure is triggered by shortening day length and internal hormonal cycles, not by food supply.
- Take the feeder down about two weeks after you last see a hummingbird. That window may feed a late migrant, a young bird or an injured straggler passing through.
- In much of the West, and increasingly along the Gulf and Southeast coasts, hummingbirds winter locally and feeders can stay up all year.
- Late fall birds are often a different species than the ones you fed all summer, particularly rufous hummingbirds turning up east of their usual range.
- Clean and dry the feeder thoroughly before storing it, and store it in pieces rather than assembled.
Take your hummingbird feeder down about two weeks after the last bird you see at it. Not because a late feeder is a hazard, but because after two empty weeks the birds have gone and you are maintaining sugar water for nobody.
The reason people ask this question is a myth: that a full feeder persuades a hummingbird to stay past the point of safe travel. It does not. Migration is set off by shortening daylight and the hormonal changes that follow, and a bird whose internal clock says go will leave a feeder brimming with nectar.
This page covers what actually drives departure, how the two-week rule works, where feeders should stay up all year, and what to do about the odd hummingbird that shows up in November.
Why a feeder cannot hold a hummingbird back#
Photoperiod, the length of the day, is the master signal. As days shorten, hummingbirds enter a phase of heavy feeding and fat deposition, then depart. The trigger is internal, consistent year to year, and largely independent of local conditions.
You can watch this happen. Ruby-throated hummingbirds leave much of the East while flowers are still blooming and feeders are still full. Adult males typically go weeks before females and young birds, which is why the traffic at your feeder changes character in August.
A bird that stays late does so for its own reasons: it hatched late, it is molting, it is injured, or it belongs to a species that winters where you live. Removing the feeder does not fix any of those. It just removes the fuel.
The rule stated plainly
Leaving a hummingbird feeder up in fall does not trap birds, delay migration or cause deaths. It may keep a late or struggling bird alive long enough to move on. This is one of the few places in bird feeding where the reassuring answer is also the well-supported one.
The two-week rule#
Mark the date you last see a hummingbird. Keep the feeder clean and stocked for two more weeks. If nothing appears in that time, take it down.
Two weeks is long enough to cover the tail of migration through your area, including birds that are moving south from further north. Those late migrants are often young birds on their first journey, arriving with no fat reserves, and your feeder may be the only reliable nectar in the neighborhood once frost has taken the flowers.
Keep the standard nectar recipe through this period. There is no benefit to a stronger sugar mix in cold weather, and it can make the nectar harder for a bird to process.
Why late summer traffic gets strange#
Between late July and September the birds at a nectar feeder change, and it confuses people into taking feeders down early.
Adult males leave first, often weeks ahead of the rest, so the aggressive bird that guarded your feeder all summer simply disappears. What replaces him is a mix of females and this year's young, which are duller, less territorial and often present in larger numbers. Many are also molting, which makes them look untidy and small.
Traffic frequently peaks in this period rather than in June, because migrants from further north are moving through on top of your local birds. A feeder that suddenly looks busier in late August is behaving exactly as it should.
None of this is a signal to stop. It is the point in the year when the feeder is doing the most work, and it runs straight into the two-week rule below.
Take-down timing by region#
Departure dates vary less than you would expect. These are rough guides to when the last birds usually pass through.
| Region | Typical last sighting | Take feeder down |
|---|---|---|
| Southern Canada, northern New England | Mid to late September | Early October |
| Upper Midwest, Northeast, Mountain West | Late September to early October | Mid October |
| Mid-Atlantic, Ohio Valley, lower Midwest | Early to mid October | Late October |
| Southeast, Carolinas, Tennessee | Mid to late October | Consider leaving up |
| Gulf Coast, Florida, south Texas | Wintering birds regular | Leave up year round |
| Southwest, coastal California, Pacific Northwest | Resident species present | Leave up year round |
If you moved a feeder this fall, note that the last-sighting date shifts, not the biology. The count starts from the last bird you actually saw, wherever the feeder hangs.
Where feeders stay up all year#
Two patterns make year-round nectar feeding sensible rather than eccentric.
In the West, Anna's hummingbird is a year-round resident across a range that now runs from Baja north into British Columbia. These birds do not migrate south in any conventional sense, they nest remarkably early, and during a hard freeze a maintained feeder matters to them. Taking a feeder down in the Pacific Northwest in November removes food from birds that are staying regardless.
In the Southeast and along the Gulf, wintering hummingbirds have become steadily more regular. Many are rufous hummingbirds, a western species that turns up across the Gulf states and up the Atlantic coast in winter. Others are western vagrants of several species. A feeder kept going through winter in Louisiana, Alabama or Georgia is a reasonable thing to do, and these records are of genuine interest to researchers.
Report an out-of-season hummingbird
A hummingbird at your feeder in December is worth reporting to a state birding listserv, a local Audubon chapter or an eBird checklist. In several Gulf states, licensed banders will come out to identify and band wintering hummingbirds. Do not attempt to catch the bird yourself.
Keeping nectar liquid in the cold#
Sugar water freezes a little below the freezing point of plain water, so it stays liquid down to roughly 27°F (-3°C) before it starts to slush.
- Two-feeder swap. Keep a spare indoors and rotate at dawn and dusk. Simplest reliable method.
- Bring it in overnight. Hummingbirds do not feed at night. Put it out before first light, which is when a wintering bird needs it most.
- Position for warmth. Under an eave, on a wall that gets morning sun, close to the house.
- Insulate the reservoir. A wrap of foam or a sock over the bottle helps at the margins.
Never add anything to the mix to stop it freezing. No glycerin, no alcohol, no extra sugar beyond the standard 4 to 1 ratio.
Do not use heat sources meant for other things
Hand warmers taped to feeders, incandescent bulbs and improvised heaters are how feeders get scorched and nectar gets cooked. If you commit to winter hummingbird feeding, use a purpose-built feeder heater rated for outdoor use on a GFCI-protected circuit, or use the two-feeder swap instead.
End-of-season cleaning and storage#
Do not put a sticky feeder in a box for six months. Sugar residue turns into black mold that is far harder to remove in spring than it is now.
Take the feeder fully apart. Soak the parts in hot water, scrub every port and channel with a narrow brush, rinse thoroughly and let everything dry completely before storing. Store the pieces separately rather than assembled so no moisture is sealed inside, and keep rubber gaskets somewhere they will not perish. The full method is in cleaning a hummingbird feeder, and the design features that make a feeder easy to clean in the first place are in hummingbird feeders.
What to do this fall#
- Keep feeding normally through August and September. Fall migrants need fuel more than summer residents do, as covered in feeding birds during migration.
- Write down the date of your last sighting.
- Leave the feeder up two more weeks, changing the nectar on schedule even if nothing is visiting.
- Look closely at any late bird. A rufous is not a ruby-throat, and fall records matter.
- If you are on the Pacific coast, in the Southwest or on the Gulf, plan to keep going instead.
- Clean the feeder properly before storage, then plan next spring's hang date from when to put out hummingbird feeders.
- Switch the yard toward seed and fat as the nectar season ends; see fall bird feeding and, if the dependency question still nags, do birds become dependent on feeders.
Frequently asked questions#
Will leaving my hummingbird feeder up stop birds from migrating?
No. Hummingbird migration is triggered by shortening daylight and internal hormonal cycles, not by the availability of food. A bird with the urge to go will go past a full feeder. Individuals that linger are usually late-hatched young, birds recovering from injury, or in the West species that normally winter locally anyway.
When should I take my hummingbird feeder down in fall?
About two weeks after you last see a hummingbird at it. In the northern states and southern Canada that usually means late September or October. In the mid-Atlantic and Midwest, mid to late October. Along the Gulf Coast and through most of the West, many people leave feeders up all winter.
What if a hummingbird is still coming in November?
Keep feeding it. A hummingbird present in late fall or winter in the East is usually a rufous or other western species that genuinely winters in the Southeast, and it is not there by mistake. Keep the nectar unfrozen and consider reporting the sighting to a local birding group, since these records matter.
Should I leave my hummingbird feeder up all winter?
Yes, if you live along the Pacific coast, in much of the Southwest, or on the Gulf Coast and Southeast where wintering hummingbirds are regular. Anna's hummingbirds are year-round residents across a wide western range and depend on feeders during cold snaps. Elsewhere there is no harm in leaving one up, only the work of maintaining it.
How do I keep hummingbird nectar from freezing?
Bring the feeder indoors overnight and put it back out at first light, or run two feeders and swap them at dawn and dusk. You can also wrap the reservoir with insulation or hang the feeder under an eave close to the house. Never add anything to the nectar to lower its freezing point.